Refrigerating apparatus



March 4 1924. l 1,485,902 l W. ZEINDLER REFRIGERATING APPARATUS FiledJan. 2,. 1920 2 Sheets-Sheet 1 INVENTOR w. ZEINDLER REFRIGERATINGAPPARATUS March 4 1924.

l 2 Sheets-Sheet 2 Filed Jan. 2,

A Wemel- Zezndleff ATTORNEY Patented Mar. 4, 1924.

UNITED armes PATENT WERNER ZEINDLER, OF PHILADELPHIA,

To all whom it may concern.' v

Be it known that I, WERNER ZEINDLER, a citizen of Switzerland, residingat Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements in RefrigeratingApparatus, of which the following is a specication.

My invention relates to a new and useful improvement in refrigeratingapparatus, and has for its object to provide an exceedingly simple andeffective device of this description the working parts of which areentirely inclosed and having a distended refrigerating coil which may bereadily inserted in a refrigerator or ice chest of any design and effectthe cooling of the interior thereof without the necessity of using ice.

A further object of my invention is to so construct the apparatus thatthe maximum eiiciency for 'extracting the heat from the cooling agent inits cycle is obtained and to expose the maximum cooling surface forrefrigerating urposes relative to i the amount of coo ing agent used.

A still further object of my invention is to so design the apparatusthat the working parts will be entirely contained within the centralcompartment while the circulating and cooling water surrounds thiscompartment, to dispose the compressing cylinder in a vertical positionland to provide direct drive for the mechanism from a housed motor sothat the apparatus may be entirely self contained and readily lubricatedby the splash system.

further object of my invention is to provide a secondary suction valvewhich will act as the intake from the central chamber so as to withdrawany gas which may leak thereto from the compressing cylinder.

A further object of my invention is to so i construct the suction valveVand its connective parts as to prevent it from falling into thecompressing cylinder should the parts thereof become displaced ordisarranged from accident or wear.

A still further object of my invention is to provide for making ice inlimited quantities-while eflecting the cooling of the ordinaryrefrigerator box.

With these ends in View, this lnvention consists in the details ofconstruction and combination i PENNSYLVANIA, `LSSIGNR 0F ONE-HALF TOGEORGE L. GAY, 0F PHILADELPHIA, PENNSYLVANIA.

REFRIGERA-TNG APPARATUS.

Application led January 2, 1920. Serial No. 848,743.

of elements hereinafter set fprth and then specifically designated bythe c a1m.

In order that those skilled in the art to which this inventionappertains, stand how to make and use the same, I will describe itsconstruction in detail, referring by numeralsto the accompanying drawinforming a part 'of this application, 1n which:-

Fig. 1, is a vertical section of a refrigerating apparatus showing themotor and rerigerating coil'in elevation.l

ig. 2,'1s an enlar ed fragmentar view showing the compressing cylinderan valve casings in plan. Y F.Fig 3, 1s a section at the line 3-3 ofIfig. 4, is a detail view casing.`

Fig. 5, is a similar view of the suction valve stem and split washertherefor.

Fig. 6, is a section view of a household refrigerator showing m improvedrefrigerating apparatus appliedy thereto.

Fig. 7, is a detail plan view of the ice making element.

In carrying out my invention as here embodied, 1 represents a jacketpreferably circular in cross section in which is located the casing `i?.the latterv being of such diameter as to form a `com artment between thewalls of the jacket an the walls of said casing for containing the waterwhich serves to cool the system.

of the suction valve The interior of the casing 2 provides a compartmentfor housing the operating mechanismI and in this ycompartment is locatedthe compressor cylinder 3 in which latter operates the piston 4connected by the pitman 5 to the crank shaft 6. 'This crank shaft isjournalled in the bearings 7 and carries a beveled gear 8 meshing withthe beveled pinion 9 the latter being secured upon the vertical shaft10. The lower end of this vertical shaft is mounted in the bearing 11while the upper portion thereof passes through the long bearing 12, saidshaft carrying a beveled gear 13 upon its upper end with Awhichv meshesthe beveled pinion 14 carried bythe shaft 15 of the motor 16. By thisarrangement when the motor is in operation the crank shaft will mayunder- 4 V from this valve leads the passageway 3 be revolved causingthe piston to reciprocate within its cylinder. A

To the upper end of the cylinder is litted the head 17 and in this headis fitted the suction -or intake valve casing 18 havingthe valve seat 19at the lower end thereof upon which the suction valve 20 is adapted toseat. rlhis casing is held in place by the threaded plug 21 having adeending shank 22 The valve 20 is provide si, with a stem. 23 the upperportion oi which is hollow as indicated at 24 and has formed therewith acollar 25 between which of the casing 18 is Ainterposed the coil spring26 for the purpose of normally valve 20 u on its seat. The valve stem 23also has ormed therewith the dan e 27 beneath which the split washer 23is p aced, said washer being of such diameter as to contact with theflange 29 formed upon the interior of the casing 18 by which arrangementthe stem is free to move up and down within the casing within certainlimitations and this washer will prevent the valve from falling into thecylinder should the collar or sprlng break. v

T e hollow portion 24 of the 'stem telescopes over the shank 22 so as toguide the stem in its reciprocating movements.

The valve casing 18 has two openings 30 and 31 formed in the sidesthereof the opening`30 registering with the intake 324 while the hole31registers with the secondary intake 33, and 34 represents a springpressed valve which normaly closes the intake opening 35 communicatingwith the interior o the casing 2 for the purpose hereinafter set fortht36 represents the exhaust valve which is fitted in a suitable casing,set in the head 17 and communicating with the cylinder prud to which theupper end of the pipe 38 is secured., rlhis pipe is coiled around thecasing 2 out of contact therewith so as to have its entire surfacesubjected to the action of the 'cooling water contained in thecompartment outside of the casing.,

The lower end of the pipe 33 passes through a stung box 39 and isconnected with the expansion valve 40, said valve in turn beingconnected with the upper end of the refri erating coil 41, the lower endof said coil eing turned upward through the center of the coil asindicated at 42 and terminating in the control valve 43. This controlvalve is connected with the pipe 44 which passes upward therefrom intothe interior of the casing 2 and is connected with the intake passageway32.

From t foregoing eration of my improved apparatus will be as follows:--v

The system being charged by the introducproper amount of coog and thebottom holding the p said water bemg supp f water a block descriptionthe opagent into the coils control valve 43 the motor in operation thereciprocations of the piston, 4 will draw the cooling agent in gaseousform into the cylinder through the pipe 44 and the suction valve andthen compress the same forcing 1t out into and through the coil 38 whichwhen reaching the expansion valve will be liberated 1n the form of gasinto the coil 41 thus lowering the temperature of said coil to theproper degree and this cycle will c ontinue as long as the motor is inoperation9 the coil 38 and its contents 'being constantlyy cooled by thewater contained 1n the comartment betweenthe iacket and the casingi hedthrough the proper surface line connected to the inlet 45 and acirculation of said water maintain by the connection drain line with theoutlet 4d in practice the apparatus when so placed upon a refrigeratoror ice box with the coil 41 projects into said box as clearlyillustrated 1n Fig. 6 and when the apparatus is in operation as abovedescribed this refrigerating coil will produce the proper temperaturewithin said box.

47 represents a brine tank which ma be placed within the refri eratorand in w ich is a secondary coil 48 eading from the refrigerating coil41 having a valve 49 located in said secondary coil by Which'arrangementthe placing of a cam 50 within the brine tank to cause the freezing ofthe contents of said can, and by filling said can with of ice may thusbe produced.

51 represents a hood which is placed over the beveled gears 13 andv14 toinclose the same and provide against possible accidentg When theapparatus is in o eration any leakage of the cooling agent rom thecylinder through the piston or otherwise will pass into' the centralcompartment to prevent the loss of the same or its interference with theoperations of the machine, the same will be sucked back into thecylinder by the action of the piston through the seconda valve 35 thuspreventing the loss of the cooing a ent `from the stem therebyincreasing t e economy., myimproved construction a cheap, simplefrigerating apparatus is may be readily applied to any refrigerator andis especially a apted for application to household refrigerators.

0f course l do not wish to be limited to the exact details ofconstruction `as herein shown as these' may be varied 'within the limitsof the. appended claim without departing from the spirit et my inventionHaving thus ful y described my invention9 what 1 claim as new and usefulisz- En a rerigerating apparatus, the comhination of a casing, a jacketsurroung said. cas d sp from to fo a and ecient re- 38 and 41 tugh thelid provided which 8 compartment for the circulation of water, of thefirst named valves and the interior of a coil disposed in saidcompartment and enthe casln ,l and a piston reciprocatingly circling thecasing, a cylinder within the mounted 1n the cylinder. casing with whichsaid coil communicates, In testimony, whereof, I- have hereunto valvescontrolling the communications beaxed my signature. y tween the coil andcylinder, a secondary valve forming a communication between one WERNERZEINDIJER.

